A system including a memory storing a meaning taxonomy is provided. The meaning taxonomy includes meaning loaded entities and associations between meaning loaded entities and syntactic structures. Each association links a meaning loaded entity to a syntactic structure. The system includes a processor coupled with the memory and components executable by the processor configured to receive content generated by a source, the content including syntactic structures, identify meaning loaded entities that are linked to the syntactic structures by associations, calculate a content summary indicating a level of coverage of the meaning loaded entities within the content, and provide a representation of the summary to an external entity.